DE1450293A1 - Pipe seal - Google Patents

Description

22nd December 1964 / SI »

LKROY BAER, 3382 West 8th Aveneue »British Columbia /

Canada

r ».r? - 'c I -;!? -. ,, 1.UnVj le ^ ieht sioh £» uf seals between two Fv-hr ^ n »ίϊ'.;'5-;; c --- T ^ π single ilofrr and ο ine ^ Muffe and between ei.i: n ^} 1; Λ: ι ^ι mil · "» r- ' xl -.- ■ • i * voi-l.iiTlun »aa ⁱ Ulf.k _i ,

in «'.-» ι- iü' ^ nOo. * r.us.'i'irolining v / ü »d ilar Ausdru-sk" Höhr "? er w ^ ':'uv;i'iDüiii - Ku a ..- 3; ϊ ο dor a Ilolir, © ins llOh £ m \ x £ fQ oiler a noaiTor ^ irjuun ^ ncück au Hasex

1 * v. . i _: 'i;;; r. /ϊ.ί;.·ϊΐΙίίν>α·3ΐι for pipes and Rohrvorbinclungsstück'e ü: i · ', -c ^ h £: i »J, r -I- i" .r «p ^ irnl.jrten sealing rings adhere the small only -. * ·;, ui-.Uhvurs ^ '- n in general, anS engewind β open- vlssvfn, SCWi ^ a threaded lid, with the lid: -, on cie OuQenaelte ösi »Abeohlußffiuffe _ü was screwed "around the seal ring iiusammensmdrüeken" In larger versions provided with a flange threaded ring was tenacious duroh? .reiehe Bolzeh along dSx ^ ümfanges attracted

In the smaller versions, it was necessary to leave the threads untreated, so that they were exposed to the corrosion caused by the environment. By tightening the threaded Deakela, there was also the likelihood of twisting or deformation at the sighting area 'jbim _c iu the gyöfiorezL executions became a

^Ba D 0R! _Ginal

809811/0396

Looked at from 'Bolsssn feabgedrelit, to siphon a threaded ring into the muffs and to ssuaamHienzupresseno the sealing ring. and uniform to the other fe / ifziüäieheno. In unfavorable areas, ^one example on walls ,, iv corners "ervbon urü Osrgiöichen, ea was difficult ,, get in © bestimmt® J & lzen- su and gene Äba.ohluß to dense" also was • ome 25äit I> e? / _F iötl3t ui-i complete the d'iohtungsmaterial of the pipe or Ies Robrverlilndungstüakeii au »

Since a considerable torsional strength was required for these bolts _? it was made from material economically. hG. 'there; 3 the necessary strength and corrosion ^ l · fstandI ^ 'k3it hstto .. around the bolt the Laljanaciau ©! ¹ des Hohros υ id des TiohrverbiiiduiTrsEiatei-laJa sau gebsn- there are also oils

cijcl ^ un «i-id as a result of the stretching üäer Mnguiig iESlcukUi ^ rai ^ L ■ .iflusae an accelerated ff \ -. u ^ fj ^ ii ·; ^" DarüU, i - follows ₉ dä ^; ß the. Korroaio'naex-Alir / elsliki ^ c "vioit ^ ehencl · -yo-n the bolt or, with vsrrrehsnen ^f £ ai: u> n the RohrvsrtJindteile

It is an abandonment of the ^ Gi'i discovery »a flawless Blehtunga- 3ΐιονύηητΐβ ZV, sohüix $ n _r the in; general only one bolt. · Or pin requires ₉ soft turns a bing, whereby pressure is exerted on a bending ring with the help of a Klemorvlrkting, preferably by means of a Kruökringee can, and because it requires fewer pin ", these can of hoeh corrosion resistant material ^ exist without the cost su largely affecting ,, further no pressure occurs in any part of the Hlifömlfetel on _r da 'of the body and dex ¹ sleeve of Rphres or 848 RohrverbinSuiigstüc-kes, which ropes in all ^: 3iiieir) have a large cross-section and are made of corrosive

809811/0396 \ ^{BAD 0RIGINAL}

sionsbeetistentGm material consist »

Another advantage is that due to the large Tolerance of the sealing ring a staff rushing or a pipe end into the easily and quickly. Muff of another ear can be introduced and easy to attach a nut or a pin can achieve a perfect sighting

This seal is arranged in dam big end or socket end of a pipe, on the one sleeve or a Rohrverbindungsatückes and is adapted to receive the small end of another pipe "In other words, the seal between two pipes can be _s between a pipe and a sleeve or between a pipe and a pipe connector.

An earbud seal is in accordance with the present invention contains an annular seat in the socket end of a pipe and an annular * kempressible sealing ring in the socket end which is pressed against this seat and on the end of a fit another pipe The socket end sits means for limiting the radial movement of the sealing ring outwards » A rotatable ring is positioned adjacent the sealing ring and for movement in a circumferential direction within the socket end Provided ^, Furthermore, tangentially arranged means are provided available, which is used to rotate the ring in the circumferential direction served

The seal contains means which cause axial compression of the sealing ring as a result of rotation of the rotatable ring * whereby the sealing ring is moved radially inward, and the pipe end around which it extends ^ The sits of the socket is preferably inclined and too extensive

BATH 809811/0396

the sealing ring is also inclined to the Bank Of The seat according to ₀ In most cases, the best results are obtained when * the inclination of the seat manufacturers, as the slope of ιDichtungsringes ₀

A feature of the present seal is _t that they contain carriers which the axial pressure to be the sealing ring cause and that the carriers are gefromt such that a small movement of the movable ring in the circumferential direction den.gewünschten amount of the sealing ring pressing · produced Furthermore, the driver soäusgebildet ? that the first axial scuffing of the sealing ring takes place relatively quickly, while the final or fastening movement is rather slow

In the accompanying drawings are examples of the subject matter of the invention shown:

Figo 1 is a longitudinal section through a terminating wire «Between adjacent ends of two robxes,

I ¹ Ig. 2 corresponds to a yertical section along the line 2-2 of FIG.

FIG. ₀ j represents a vertical section along the line 3-3 of FIG.

Figo 4 shows a perspective view of the movable Ring of Fig. 1,

Fig. 5 gives a perspective view of a pressure ring again ,, which is used in the conclusion according to Figo 1 *

80 98 1 1/03 9 6

Big _o 6, the partial perspective of a Muffenend illustrates it from one of the tubes _p ^'a

7 relates to an enlarged partial section from Figo 19 "· .-. '■■

Figo 8 is a partial view similar to Figo 2 ₉ wherein another possible Beföstigungsahordnung for the seal is shown _f. "

FIG. 9 corresponds to a view similar to FIG. 8, wherein another similar mounting arrangement is shown will j

3? Ig _o 10 illustrates a view similar to Figure 8 _{o 9,} and shows yet another mounting arrangement ₉

Figo i1 is a view similar to Figure 6 ₀ view and shows a modified form of a Absehlufidichtung ₉

FIG. 12 illustrates a perspective view of a rotatable hinge for the seal according to FIG. 11 _f

FIG. 13 looks at a cable view similar to FIG. 11 and contains part of a movable ring B ₉

Fig _e H is an enlarged view of two, suitable for the seal driver, which have a preferred surface shape on?

Fig. ₀ 15 shows particular means for rotating a rotatable ring of the seal ».

β 1 1 / η ο r »e

Yes, reference is now made to FIGS. 1 to 7 of the drawing ο Sört is denoted by 10 the small end of a pipe which fits into the large socket end 11 of another pipe or socket 12 arranged and surrounds the pipe end 10. The seal 15 contains an annular ₉ ! compressible sealing _{ring 20 9} which is pressed against a seat 21 in the socket end 11

The Sits 21 is preferably chamfered as indicated by 22, and was "from an inner edge or Hase 23 in a radially outward direction, in direction at an outer edge 24 su ₀ The seal 20 1st with a slanted surface 2 ? formed, which corresponds to the socket seat 22 and is opposite. As can be seen from flg. 7, the seat 21 of the sleeve 22 is preferably steeper, and the inclined surface 27 of the sealing ring 20o. In this arrangement, the inner edge or lase 29 of the sealing ring is pressed against the inclined seat 21 before the compression of the sealing ring while the remainder of the beveled surface 27 slopes away from these seats.

Sits 21 of the socket end 11 limits the radial movement of the sealing ring 20 outwards and it is advantageous to provide an annular shoulder 32 within the socket end on the edge 24 of the seat 21 to support the limiting effect ■ is pressed against the Sits 2t, he's gezwu ^ s, move naoh su interior and the tube end 10 to umfaosen _0th . -

BATH '

A movable ring 35 is provided, which is located in the socket end 10 in the red can move the circumference «This ring can during its rotation in the axial direction on the sealing ring 20 see below, but in the case of the seal 15 shown, the rotatable ring is secured against axial movement «. The rotatable ring 25 is arranged in an annular hat 38 which is located in the inner surface of the socket end 11. Sine Sohulter 39 1st lia socket end between the hat 38 and the Outer surface «40 of the socket end of the Korhanden. Like Pig. 6 shows Is this shoulder by an Ansabl of kuaparunge ^ jz / soft with the groove 38 in connection 3tehen "The movable ring 35 has a number of Aneätsen 45, which are outward extend · This approach * · know through the cutouts 42 can be moved in 4-way shoulder 39 into the hat 38 when the movable ring is inserted into the socket end. When rotating dee ring, the Anafitίβ 45 get behind the shoulder 39 » ao that the ring can move in the circumferential direction, but not in the axial direction

XIn pressure ring 48 iat in the socket end 11 between the movable Ring 55 and sealing ring 20 are provided, Per Sruokrlng kamt Is socket end are exposed and depending on his Frictional engagement old the sealing ring 20 prevent its rotation * Torsug8weise but the pressure ring has a sioh outwardly extending approach * 49 »which fits into a hat 50, which is formed on the inner surface of the socket end and aioh extends in the axial direction, eijh the lut In «Ina Ringftfralge Mut 38 extends and one of the recesses 42 opposite.

When the ring 35 is rotated in alignment, aioh moves dar Druokring 48 axially against the sealing ring 20 or can eich tone this away, what of the direction of rotation of the ring depends. According to FIGS. 4 and 5, the "axial movement in FIG

809811/0396

Seal 15 by a number of τοη inclined drivers » 52 executed, which on the inner surface 55 of the ring 35. and by appropriately inclined drivers 55, which ah the outer surface 56 of the pressure ring 48 are provided. When the rings 35 and 48 are in their correct positions within of the Muffenendea are, the drivers 52 of the rotatable Ring, against the driver 55 of the pressure ring, so that the rotation of the. Movable ring in dar a ring, the Duckring moves against the sealing ring 20 and compresses it, while the sealing ring can loosen * fall the movable ring is rotated in the opposite direction and the sealing ring pushes the ring 48 outward, Palis ea is desired, can be an approach or stop for each of the "drivers 52 or 55 are applied, whereby the axial movement of the Eruokringea is slower than when using the two opposite drivers.

The movable ring 35 can be rotated circumferentially in various ways. According to Pig "2, a bolt 60 through a part dee sleeve playDee geachraubt 11 and extends tangentially calibration gruncsätrlich" 25 to the movable ring Dae, interior En € e of the bolt 60 is In'einer large recess 61 is arranged, which extends to the inner surface of the socket end and opens to the hat 38 «The bolt end presses against one of the ring lugs 45» When the bolt 60 is rotated into the interior of the socket end, it moves against the lug 45 and rotates the ring 35 in a direction through which the pressure ring is moved against the sealing ring 20. As a result, the sealing ring moves inwards and encompasses the end of the pipe. If the bolt is rotated in the opposite direction, the ring 35 can also rotate in the opposite direction

Rotate direction, under the influence of the driver 52 and 55 = as soon as the sealing ring is disconnected; "If you take it with you des beY / eg ^ aren Riagea press on the pressure belt and therefore move the dish ring inwards, press the snatch 45

80 98 11/0396 BAD original

of the movable ring against the shoulder 39 and generate the necessary axial pressure

8 shows another means for rotating the movable ring 35 _e . In this example, a bolt 65 extends through the hoof end 11 into the recess 61 and over one of the. Approaches 45 of the movable ring "The bolt has a finger 66 at the inner end, which engages with the attachment 45 ₉ Bine nut 67 is screwed on the outer end of the bolt 65 and presses against a © shoulder 68 dea socket endos.65", If the Muttsr is tightened on the bolt, moving the latter dan Ansät "45 and causes _t that the movable ring presses the seal ring". When the nut wirdj rotated in the opposite direction, also, the movable ring in the opposite direction to rotate and in this case the sealing ring release «,

9 shows yet another possible way of rotating the movable ring 35 Outer surface of the socket end extends outward. A bolt 77 is durtih the Ansataverlängerung 72 and the lug 75 and has at one end a head 79 and a nut 80 'which is screwed at the opposite end isto When the nut on the bolt tightened is _9, the pressure turns represents ring 35 and causes the Sealing ring 20c. If · the nut is turned in the opposite direction, the ring can also turn in the opposite direction o

The i ^l ig "10 shows a" Eiteren Y / ec sur operating the Move = · cash EingOb 35 * In this Beiepiel has one of the approaches

BAD ORlGfNAi. 809811/0396

of the "movable ring 35 at the outer edge a thread 83" which engages the thread of the bolt 84 which extends tangentially outside the socket end 11. The bolt 84 can rotate in the socket end ", but Br is against longitudinal movement in a suitable manner for example by means of a head screw 85 which is pushed into the socket end and extends into a groove 86 provided in the bolt. When the bolt 84 is rotated in one direction, the movable ring 35 rotates and causes the compression dem Dlehtuägs <ringes 2Oo If the bolt is turned in the opposite direction. ■, the movable © ring also turns in the opposite direction »so that the sealing ring can relax _o ."'- -.

The mode of operation of the seal 10 results from ^ bigenio When the movable ring 35 is rotated in one direction / ¹⁸ SwV pressure ring 48 moves against the sealing ring 20, which, because of its seat on the incline it «2ΐ is forced inwards, and tightly embraces the pipe end 10. When the sealing ring 20 is pressed inwardly as a result of the fact that the inclination of the seat 21 is steeper than the inclination of the outer surface of the sealing ring 20, a high pressure arises at the rabbit or corner 29 of the sealing ring against it The Sft.s · This dampens the compressive effect due to the expansion of the thicker rear section of the sealing ring. This results in the material of the sealing ring remaining intact for a longer time than would otherwise be the case. This results in a closing effect on the shoulder of the sealing ring and a deformation resistance at this point because the compression is high enough to overcome the pressure effect dampened by the thicker section of the sealing ring Inner surface of the socket and the outer surface of the pipe 10 at the Kas.e or Innöfeante of the Diehtuagsringes occurs. In this way a defect can be eliminated

80981M03S

«11

Overcoming this type of stuffing box has been around stuck for a long time. In addition, the mentioned feature enables times creating a valuable mechanical pipe seal of different outside diameters in the same nominal size = range by simply changing the pressure ring and the Thickness of the sealing ring o

The Figo 11 bie 1? show another possible sealing rod shape 15a «,

BATH ORIGINAL

80981 1/0396

In diesel * modification of a rotatable ring 9c on Muf missing provided and designed to _t in the axial seal? Move su! This ring has extending a plurality of after ayßeri projecting locking dogs that ah si into a groove 97 of the socket end, which of the previously described groove 3ß, but is about wider than this <> Zivischen the hat and the outer surface of the sleeve end oneö shoulders 98 provided «Each shoulder has a driver surface 99 along the inner edge $ which is opposite the Tut 97 o These driver surfaces bilrlen drivers or threads for the movement of the movable ring 92 in the axial direction when the king is rotated circumferentially. Each driver lug 95 of the ring has a surface 102 "which corresponds to a driver surface 99 of a Sshufiterc 98" If it is desired, the movable ring 92 can directly against the Sealing ring 20 driteken, ep. iet abet preferable * _t a Druekring 48 to be arranged therebetween, a ,, Fernar Alisatz or stop for each of the Mitnehmeroterflachen be used 99 or 102 ,, In this case, axial movement of the movable ring dia? The two opposite driver surfaces can be used more slowly

The movable ring 92 is rotated in UmfangsrieiituBg diiroh irg "nyour means _t in the Fig, 2 is dargeeicUt 8, 9 ^ nd 10 _n In this case, the bolt is _t ,, which causes the Drehvccg iner with" represents MitnehmeransMtsse 95 of the rotatable ring in

Bie sighting 15a shown in FIGS _o 11 bi ^"5 13 acts in substantially the same orphan as the seal 15 _C. The only Unttr" ehied is that, when the movable "ring is rotated in KJmfartgjrichtung 92. he axially terephthalate <ilioten is in order to bring about or relieve pressure on the sealing ring 20, depending on the

BATH ORIGINAL 809811/0396 '

One of the advantages of the seal 15a is that the driver shoulders 98 are made in any desired manner can be. They can be formed, for example, when casting the »socket end, they can also be separate pieces of metal, which are attached to the socket end by welding or in some other way or the hoof filing end can consist of a metal from which the driving shoulders are cut out or bent »

. Me 14 illustrates Porsten desirable for drivers 52 and 55 and cam surfaces 99 and 102, where each of the drivers 52 and 55 of the movable rings "35 and 48 Druckringea are usable for this purpose ₀ The driver 52 hai; a first surface 110, which is sharply curved or angled outward from the hinge and a second surface 112, which is slightly curved or angled in an outward direction »The surface 112 follows the surface 110 in relation to the direction of movement of the driver, which is indicated by the arrow 113 when the hing ~ "> 5 is rotated to the seal ring to compress" the driver 59 has eio.e first ssharf curved or angled surface 116 and a second, slightly curved or angled surface 118, wherein the first and second surfaces are reversed with respect to the first and second surfaces 110 and 112 of the follower 52.

When the hing 35 is first rotated in the direction of arrow 113, the surfaces 110 and 116 i.er catches 52 and 55 come into engagement. As a result of the sharp KxÜBimuagea the Hing 48 is quickly displaced in the axial direction imd Kompriinlart the sealing rings. During the remainder of the rotation, the slightly curved surfaces 112 and 118 come into engagement vaaxk exert a pressure on the sealing ring more slowly. Therefore, the tensionlessness is abolished, and during the final attachment

80981 1/0396

greater leverage is exerted on the sealing ring. . In this way, Sb will have less turning motion for the movable ring required to achieve a perfect seal around the pipe that is encompassed by the sealing ring, as well normal drivers would be necessary, in which the curvature or the angle of the surface is constant over the entire length «This means that the movable bolts, for example bolts 60, do not need to be very long, u-n the necessary axial dimension movement for perfect diohting «The surfaces 112 and 118 also cause a large surface engagement, see above that the seal can still be kept tight »

Fig. 15 shows a possible a, "without11 acting agent for represents the rotation of the rotatable ring 35, which is also usable for the movable ring 92. One of the lugs 45 of the movable ring has an extension or extension 125 which through a slot 127 of the socket & it goes to the outside and runs parallel to an extension 128 which protrudes from the outer surface of the ridge edge one end of the lug 123 rotatably mounted, and a connecting rod 131 is at its ends with the lever 130 and the Attachment extension 125 rotatably connected *

When the lever 130 is in the upright position (Fig. 15), the ring 35 is in a position in which the sealing ring 20 is relieved. But when the lever is turned downwards, the link 131 moves to the opposite one Side of the plane which passes through the pivot point of the lever at attachment 123 and the connection point of the link 131 at the extension 125 »Through the position rotates ei oh der movable »Hing 35t ioapriraiert the sealing ring 20 and locks the ring in this position ·> At the same time there is a 4-way lever on the Outer surface of the hoof end 11. If dt> 3? Lever 150 erected the ring 35 rotates and removes the seal ring.

.. BATH

809811/039 $

Claims (1)

4S. B 79 893 til / Alt February 24, 1967 Ternon Leroy Barr 'Gau / EU patent claims 1. Sealing of hoof pipe connections by means of an elastic diaphragm ring, pressed against the socket base, on which the axial pressure force is applied by a ring which can be rotated in the Urafargsriohtung and which can be rotated by tangentially acting means »characterized in that these gowns (60, 65 * 77 »84, 130) are arranged in the plane of the movable ring (35, 92) and lie tangentially to this, the movable hanging hook means (5? -55, 99-102) has an annular shape Sit * (21) la ftttfeneade (11) is formed, which is formed by an inner Xante (23) naea auten ftit radial KoiLponente against the hope end the egg tang Sa of a foot edge (24) towards . -2- BATH ORIGINAL 809811/0396 Pipe seal after spoke 1 _? characterized in that the bevel of the seat is steeper than the beveled surface of the sealing ring » Pipe seal according to claims 1 or 2 _f, characterized by a pressure ring (48) between the movable ring and the sealing ring, against which the movable ring extends. Pipe seal according to claim 3 »characterized by means for the rotation of the pressure ring in the circumferential direction, where the latter includes a lug (49) extending radially from the pressure ring and formed into a socket end Groove (50) fits and which is longi1; u <5itial relative to the first Tube extends * Pipe seal according to claims 1 to 4, characterized in that the sealing ring is formed on its inner edge with a rabbit (23) and the bevel of the seat (21) is steeper than the beveled surface (27) of the sealing ring, whereby aicb only the ease dee Dinhttnigsringea eradicate the slot extends if the sealing ring is not zußeiamengepreß letj and a high Koiapre es ion egra d with the rabbit against the slot arises when the sealing ring guofirwi / m pressed to the pressure effect against the sealing ring äv.rzh expansion of the To scatter the sealing ring at its outer edge " Pipe seal according to claims 1 to 5 "characterized ^ that the middle of the squat consists of a pair of opposing skirts" each of the squats e.a first outside ccark curved · surface (HO), di «from ο ic? ei · two inside outwardly slightly curved surface tubes; (T * 2) ße.i'clgt wire., 'Vob ^ i the BAD OBfQSMAL 8098 1 1/0396 bad c ™ first surface of one;} eden cam is the first to hit the oil surface of the other flake when the cams are moved relative to each other «» Rohrdiohtung according to claims 1 _S 2 or 5 * gskennzelehnet by a pressure ring element (48) between the actuating ring and the sealing ring, which also extends against an outer Kaate of the sealing ring ^ and in which the cam means correspondingly beveled, on the actuating ring and one of the elements together « left cam (52-55), (99 = 102) contains Pipe seal according to claim 7, characterized in that each of the cooperating cams has a first outer strongly curved surface (110) followed by a second slightly contoured surface (112), the first surface of each hook being the first one surface of another 's Nooke encountered when dis Uocken relstiy are moved towards each _o Rohrdiohtung according to claims 7 or 8 _? characterized in that one of the elements provided with cams has a broken shoulder element (59, 98) * ο Pipe seal according to claims 7 or 8 _P characterized in that one of the elements provided with squats contains the pressure ring. β Pipe sealing according to claims 1 - 10 _5, characterized in that the means for rotating the movable bracket consist of a pin (60, Sb ₉ 77, 64) which extends essentially tangentially to the movable ring and with one part de; * the latter enters into EiR ^ ri ^ f " Pipe seal according to claims 1 - 1 "' _s characterized in that means for rotating the movable ring consists of an attachment (43) which follows radially from the movable ring 80981 1/0396 - r - ■ protrudes outside, and one bolt (60, 65 »77, 84) is attached one sleeve end extends substantially tangentially to the movable hing and engages with the shoulder ", Bphrdiohtung according to claim 12, characterized in that the bolt (60, 65) in the socket end is common and a calibrate the inner end extending towards the ring attachment " shows « Pipe seal according to claim 12, characterized in that cal the bolt (65) extends through the socket end and a at its outer end common and against a shoulder (68) extending nut (67), the shoulder (68) is molded into the socket end and the bolt extends over extending the ring attachment and having a finger (66) on an inner end engaging the neck * Pipe seal according to claim 12, characterized in that the ring extension (72) through a slot (73) in the Sleeve end extends, and that the bolt (77) arstrecks through the ring lug (72) and through a lug (75), which protrudes from the socket end substantially parallel to the hanging lug (72), the bolt having one at one end extending against an Annatz and a mother (80) Head (79) with the nut (80) on the opposite - = lying end that extends towards the other approach is common o Seal according to claim 12 »characterized in that the Bolt (84) is rotatably mounted in the socket end and a common in the threaded part (8?) of the Hingan set has engaging part » Drilling seal according to claims 1 «=» 16, characterized in that that the means for rotating the movable ring from an angle SAD ORIGINAL 809S11 / 0396 eats (125), which is τοη the movable jing (35) extends radially outward, a projection (128), the calibration τοη the Kuffenende near the einganeatz radially outward extends, a toggle lever (130) which is rotatably mounted near its one find on the air end lug, and one Member (131), which at the opposite ends with the Bebel (130) is connected to the ring attachment (125), wherein the Bebel from an outwardly projecting position from the socket end to a position near the socket end Movable position eats to rotate the movable ring so that the sealing ring clamp the second drill end τeranlalaß, while the member (131) luer to a by moving the rotatable connection of the lever to the socket end attachment and the rotatable connection of the link to the ring attachment extending plane to secure the movable ring in place eu » Pipe sealing according to claims 1 - 17, characterized in that that the squatting means causes an axial compression of the sealing ring, common means in the socket end and lug means on which with the common means in engagement having movable ring, and are suitable, the movable ring axially on the rotation of the ring to Tersheben to to compress the sealing ring Rohrdiohtung according to claims 1-18, characterized by the Camming means which cause axial compression of the sealing ring and a pressure ring between the movable ring and have the sealing ring, common means in the socket end and Anaatsaittel on the with the common means in engagement standing movable ring, with the usual means suitable βlud, on the rotation of the movable ring * the pressure ring to move axially against the sealing ring in order to close the latter c BATH ORIGINAL 80981 1/0396